Where is the style of the element, but it looks like it’s styled_ ummm.. like..

Question

On w3School, I sometimes open a code (“try it yourself”), and there’s no css tag at all, not even a link, but the page / elements is styled.
Why | how does that work?

Answer 1

F12-sources, look for the folder in the directive or on the right in the styles tab, click on the column to the right of the styles and the whole document will appear. This is in Chrome.